Rate: 140 - 160 PLN/hStart date: ASAP/1 month/flexibleDuration: long term (12 months with further extensions)Work model: 100% remoteType of cooperation: B2BOverviewWe are looking for an experienced SAS Tester to join our team. The ideal candidate will have strong expertise in SAS programming, data reconciliation processes, and preferably experience with Big Data environments. This role focuses on validating data transformations, ensuring reporting accuracy, and supporting end-to-end testing for large-scale data initiatives. A key outcome of the tests will be to confirm that the output datasets of SAS programs running in a newly set up environment with the Altair compiler match those from the existing SAS environment/compiler, and that performance is at least equivalent.Responsibilities Design, develop, and execute test plans and test cases for SAS-based applications and data processes Perform data validation and reconciliation between source systems and target environments to ensure data integrity Collaborate with development teams to understand business requirements and translate them into test scenarios Conduct functional, regression, and system testing for SAS programs and ETL workflows Analyze large datasets in Big Data platforms (e.g., Hadoop, Hive) to verify data processing logic Document test results, defects, and provide clear reporting to stakeholders Job scheduling using Control-M Linux scripting is optional, but good command line skills are ideal Work closely with cross-functional teams to troubleshoot issues and ensure timely resolution Requirements Knowledge of testing frameworks is required Strong SAS programming skills (Base SAS, SAS Macros, SAS SQL, SAS Enterprise Guide, DI Studio, Stored Processes, SCL, E-Miner) Optional: Altair products - Workbench, Hub & SLC Hands-on experience with Big Data technologies (Hadoop, Hive) is a plus Proven ability in data reconciliation and validation across multiple systems Solid understanding of ETL processes, data warehousing, and data quality principles Experience with test management tools (e.g., JIRA, HP ALM) and defect tracking Strong analytical and problem-solving skills with attention to detail Excellent communication and collaboration skills Preferred Qualifications Knowledge of banking or financial services domain Familiarity with automation testing frameworks for data validation We offer MultiSport Plus Group insurance Medicover Premium e-learning platform